Properties of imidazole
Thermophysical properties for imidazole (CAS: 288-32-4). Use the selector below to view properties in different unit systems.
Calculation Conditions
The following state-dependent properties were calculated at these standard conditions.
Temperature
25 °C
Pressure
1.01325 bar
Need properties at a different state? Use our interactive calculator.
Open CalculatorIdentification
- AtomsC: 3, H: 4, N: 2
- CAS288-32-4
- FormulaC3H4N2
- ID288-32-4
- InChIC3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
- InChI KeyRAXXELZNTBOGNW-UHFFFAOYSA-N
- IUPAC Name1h-imidazole
- Molecular Weight (kg)68.0773
- Phases
- PubChem ID795
- SMILESC1=CN=CN1
- Synonyms
Physical Properties
- Acentric factor0.456853
- Critical pressure (bar)105.5
- Critical temperature (°C)571.65
- Critical volume (m³/kmol)0.191
- Dipole moment
- Melting temperature (°C)90
- Normal boiling temperature (°C)257
State-dependent Properties
- API gravity-7.93738
- Compressibility factor0.00219543
- Density (kg/m³)1267.45
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)1133.01
- Enthalpy of vaporization (molar) (kJ/kmol)7.7132e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient
- Kinematic viscosity
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))79.4616
- Molar volume (m³/kmol)0.0537121
- Parachor3.2776e-5
- Poynting correction factor1.00245
- Prandtl number
- Saturation pressure (bar)4.2846e-6
- Saturation temperature (°C)260.43
- Solubility parameter3.5346e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.26869
- Specific heat capacity (kJ/kg·K)1.16723
- Surface tension0.0896403
- Thermal conductivity
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit0.0284744
- Upper flammability limit0.139891
Environmental Properties
- Global warming potential
- Ozone depletion potential